Why on earth wouldn't the Canadian Olympic Committee hop on a trademark? This really isn't revealing of anything, they are the Canadian Olympic Committee for pete's sake. I'd be surprised if they hadn't.
I know the conspiracy theories are fun but really the truth is usually far more mundane. The public in Toronto wants the games, by a large majority, and Tory's been taking a temperature check where it comes to corporate and government (provincial/federal) support. You call it a conspiracy, I call it due diligence.